Gigabyte GA-BX2000 User manual

BIOS Configuration
4-1
4.BIOS CONFIGURATION
Award's BIOS ROM has a built-in Setup program that allows users to modify
the basic system configuration. This type of information is stored in battery-
backed CMOS SRAM so that it retains the Setup information when the power
is turned off.
4.1. ENTERING SETUP
Power ON the computer and press <Del> immediately will allow you to enter
Setup. If the message disappears before you respond and you still wish to
enter Setup, restart the system to try again by turning it OFF then ON or
pressing the "RESET" bottom on the system case. You may also restart by
simultaneously press <Ctrl>, <Alt>, and <Del> keys.
4.2. CONTROL KEYS
Up arrow Move to previous item
Down arrow Move to next item
Left arrow Move to the item in the left hand
Right arrow Move to the item in the right hand
Esc key Main Menu - Quit and not save changes into CMOS
Status Page Setup Menu and Option Page Setup Menu -
Exit current page and return to Main Menu
PgUp key Increase the numeric value or make changes
PgDn key Decrease the numeric value or make changes
F1 key General help, only for Status Page Setup Menu and
Option Page Setup Menu
F2 key Change color from total 16 colors
F3 key Reserved
F4 key Reserved
F5 key Restore the previous CMOS value from CMOS, only for
Option Page Setup Menu
F6 key Load the default CMOS value from BIOS default table,
only for Option Page Setup Menu
F7 key Load the default
F8 key Reserved
F9 key Reserved
F10 key Save all the CMOS changes, only for Main Menu

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4.3. GETTING HELP
4.3.1. Main Menu
The on-line description of the highlighted setup function is displayed at the
bottom of the screen.
4.3.2. Status Page Setup Menu / Option Page Setup Menu
Press F1 to pop up a small help window that describes the appropriate keys
to use and the possible selections for the highlighted item. To exit the Help
Window press <Esc>.
4.4. THE MAIN MENU
Once you enter Award BIOS CMOS Setup Utility, the Main Menu (Figure 4.1)
will appear on the screen. The Main Menu allows you to select from nine
setup functions and two exit choices. Use arrow keys to select among the
items and press <Enter> to accept or enter the sub-menu.
Figure 4.1: Main Menu
•Standard CMOS setup
This setup page includes all the items in standard compatible BIOS.
•BIOS features setup
This setup page includes all the items of Award special enhanced
features.

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4-3
•Chipset features setup
This setup page includes all the items of chipset special features.
•Power management setup
This setup page includes all the items of Green function features.
•PNP/PCI configuration
This setup page includes all the configurations of PCI & PnP ISA
resources.
•Load BIOS defaults
BIOS Defaults indicates the most appropriate value of the system
parameters that the system would be in safe configuration.
•Load Performance defaults
Performance Defaults indicates the value of the system parameters that
the system would be in the best performance configuration.
•Integrated peripherals
This setup page includes all onboard peripherals.
•Supervisor password
Change, set, or disable password. It allows you to limit access to the
system and Setup, or just to Setup.
•User password
Change, set, or disable password. It allows you to limit access to the
system.
•IDE HDD auto detection
Automatically configure hard disk parameters.
•Save & exit setup
Save CMOS value settings to CMOS and exit setup.
•Exit without saving
Abandon all CMOS value changes and exit setup.

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4.5. STANDARD CMOS SETUP MENU
The items in Standard CMOS Setup Menu (Figure 4.2) are divided into 9
categories. Each category includes no, one or more than one setup items.
Use the arrows to highlight the item and then use the <PgUp> or <PgDn>
keys to select the value you want in each item.
Figure 4.2: Standard CMOS Setup Menu
•Date
The date format is <day>, <month> <date> <year>.
day The day, from Sun to Sat, determined by the BIOS and is
display-only
month The month, Jan. through Dec.
date The date, from 1 to 31 (or the maximum allowed in the
month)
year The year, from 1994 through 2079
•Time
The times format in <hour> <minute> <second>. The time is calculated
base on the 24-hour military-time clock. For example, 1 p.m. is
13:00:00.

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4-5
•Primary HDDs / Secondary HDDs
The category identifies the types of hard disk from drive C to F that has
been installed in the computer. There are two types: auto type, and user
definable type. User type is user-definable; Auto type which will
automatically detect HDD type.
Note that the specifications of your drive must match with the drive
table. The hard disk will not work properly if you enter improper
information for this category.
If you select User Type, related information will be asked to enter to the
following items. Enter the information directly from the keyboard and
press <Enter>. Such information should be provided in the
documentation form your hard disk vendor or the system manufacturer.
CYLS. Number of cylinders
HEADS number of heads
PRECOMP write precomp
LANDZONE Landing zone
SECTORS number of sectors
If a hard disk has not been installed select NONE and press <Enter>.
•Drive A type / Drive B type
The category identifies the types of floppy disk drive A or drive B that
has been installed in the computer.
None No floppy drive installed
360K, 5.25 in. 5.25 inch PC-type standard drive; 360K byte
capacity.
1.2M, 5.25 in. 5.25 inch AT-type high-density drive; 1.2M byte
capacity (3.5 inch when 3 Mode is Enabled).
720K, 3.5 in. 3.5 inch double-sided drive; 720K byte capacity
1.44M, 3.5 in. 3.5 inch double-sided drive; 1.44M byte capacity.
2.88M, 3.5 in. 3.5 inch double-sided drive; 2.88M byte capacity.

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•Floppy 3 Mode Support (for Japan Area)
Disabled Normal Floppy Drive.
Drive A Drive A is 3 mode Floppy Drive.
Drive B Drive B is 3 mode Floppy Drive.
Both Drive A & B are 3 mode Floppy Drives.
•Video
The category detects the type of adapter used for the primary system
monitor that must match your video display card and monitor. Although
secondary monitors are supported, you do not have to select the type in
setup.
EGA/VGA Enhanced Graphics Adapter/Video Graphics Array. For
EGA, VGA, SVGA, or PGA monitor adapters
CGA 40 Color Graphics Adapter, power up in 40 column mode
CGA 80 Color Graphics Adapter, power up in 80 column mode
MONO Monochrome adapter, includes high resolution
monochrome adapters
•Halt on
The category determines whether the computer will stop if an error is
detected during power up.
NO Errors The system boot will not stop for any error that
may be detected
All Errors Whenever the BIOS detects a non-fatal error the
system will be stopped and you will be prompted
All, But Keyboard The system boot will not stop for a keyboard
error; it will stop for all other errors
All, But Diskette The system boot will not stop for a disk error; it
will stop for all other errors

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4-7
All, But Disk/Key The system boot will not stop for a keyboard or
disk error; it will stop for all other errors
•Memory
The category is display-only which is determined by POST (Power On
Self Test) of the BIOS.
Base Memory
The POST of the BIOS will determine the amount of base (or
conventional) memory installed in the system.
The value of the base memory is typically 512 K for systems
with 512 K memory installed on the motherboard, or 640 K for
systems with 640 K or more memory installed on the
motherboard.
Extended Memory
The BIOS determines how much extended memory is present
during the POST.
This is the amount of memory located above 1 MB in the CPU's
memory address map.
Expanded Memory
Expanded Memory in memory defined by the
Lotus/Intel/Microsoft (LIM) standard as EMS.
Many standard DOS applications can not utilize memory above
640 K; the Expanded Memory Specification (EMS) swaps
memory, which not utilized by DOS with a section, or frame, so
these applications, can access all of the system memory.
Memory can be swapped by EMS is usually 64 K within 1 MB or
memory above 1 MB, depends on the chipset design.
Expanded memory device driver is required to use memory as
Expanded Memory.
Other Memory
This refers to the memory located in the 640 K to 1024 K

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address space. This is memory that can be used for different
applications.
DOS uses this area to load device drivers to keep as much
base memory free for application programs. Most use for this
area is Shadow RAM.

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4.6. BIOS FEATURES SETUP
Figure 4.3: BIOS Features Setup
RSystem will detect automatically and show up when you install the Pentium
III processor.
•Virus Warning
If it is set to enable, the category will flash on the screen when there is
any attempt to write to the boot sector or partition table of the hard disk
drive. The system will halt and the warning message will appear in the
mean time. You can run anti-virus program to locate the problem.
Default value is Disabled.
Enabled Activate automatically when the system boots up causing
a warning message to appear when anything attempts to
access the boot sector or hard disk partition table
Disabled No warning message to appear when anything attempts to
access the boot sector or hard disk partition table

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•CPU Internal Cache / External Cache
These two categories speed up memory access. However, it depends on
CPU / chipset design. The default value is Enabled.
Enabled Enable cache
Disabled Disable cache
•CPU L2 Cache ECC Checking
The default value is Disabled.
Enabled Enable CPU L2 Cache ECC Checking
Disabled Disable CPU L2 Cache ECC Checking
•Processor Number Feature
This item will show up when you install the Pentium III processor.
The default value is Enabled.
Enabled Pentium III Processor Number Feature.
Disabled Disable this function
•Quick Power On Self Test
This category speeds up Power On Self Test (POST) after you power on
the computer. If it is set to Enable, BIOS will shorten or skip some check
items during POST.
The default value is Enabled.
Enabled Enable quick POST
Disabled Normal POST
•CPU Update Data
The default value is Enabled.
Enabled Enable CPU Update Data
Disabled Normal CPU Update Data

BIOS Configuration
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•Boot From LAN First
The default value is Enabled.
Auto Enable Boot From LAN First Function
Enabled Enable Boot From LAN First Function
Disabled Disable Boot From LAN First Function
+You can set “Auto”or “Enabled”to boot from LAN first.
•Boot Sequence
This category determines which drive computer searches first for the
disk operating system (i.e., DOS). Default value is A, C, SCSI.
X1, X2, X3 System will first search for X1 disk drive then X2 disk
drive and then X3 disk drive.
•Swap Floppy Drive
The default value is Disabled.
Enabled Floppy A & B will be swapped under DOS
Disabled Floppy A & B will be normal definition
•VGA Boot From
The default value is AGP.
AGP VGA Boot From AGP
PCI VGA Boot From PCI
•Boot Up Floppy Seek
During POST, BIOS will determine the floppy disk drive installed is 40 or
80 tracks. 360 K type is 40 tracks 720 K, 1.2 M and 1.44 M are all 80
tracks. The default value is Enabled.
Enabled BIOS searches for floppy disk drive to determine it is 40 or
80 tracks. Note that BIOS can not tell from 720 K, 1.2 M or
1.44 M drive type as they are all 80 tracks
Disabled
BIOS will not search for the type of floppy disk drive by
track number. Note that there will not be any warning
message if the drive installed is 360 K

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•Boot Up NumLock Status
The default value is On.
On Keypad is number keys
Off Keypad is arrow keys
•Typematic Rate Setting
The default value is Disabled.
Enabled Enable Keyboard Typematic rate setting.
Disabled Disable Keyboard Typematic rate setting.
•Typematic Rate (Chars / Sec)
The default value is 6.
6-30 Set the maximum Typematic rate from 6 chars. Per
second to 30 chars. Per second.
•Typematic Delay (Msec)
The default value is 250.
250-1000 Set the time delay from first key to repeat the same key
in to computer.
•Security Option
This category allows you to limit access to the system and Setup, or just
to Setup. The default value is Setup.
System The system can not boot and can not access to Setup
page will be denied if the correct password is not entered
at the prompt
Setup The system will boot, but access to Setup will be denied if
the correct password is not entered at the prompt
M To disable security, select PASSWORD SETTING at Main Menu and
then you will be asked to enter password. Do not type anything and
just press <Enter>, it will disable security. Once the security is
disabled, the system will boot and you can enter Setup page freely.

BIOS Configuration
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•PCI/VGA Palette Snoop
The default value is Disabled.
Enabled For having Video Card on ISA Bus and VGA Card on PCI Bus.
Disabled For VGA Card only.
•Assign IRQ For VGA
The default value is Enabled.
Enabled Assign a specific IRQ for VGA
Disabled No IRQ is assigned for VGA
•OS Select For DRAM>64MB
The default value is Non-OS2.
Non-OS2 Using non-OS2 operating system.
OS2 Using OS2 operating system and DRAM>64MB.
•HDD S.M.A.R.T. Capability
The default value is Disabled.
Enable Enable HDD S.M.A.R.T. Capability
Disable Disable HDD S.M.A.R.T. Capability
•Report No FDD For WIN 95
The default value is No.
No Assign IRQ6 For FDD.
Yes FDD Detect IRQ6 Automatically.
•Video BIOS Shadow
It determines whether video BIOS is able to copy to RAM, however, it is
optional from chipset design. Video Shadow will increase the video
speed. The default value is Enabled.
Enabled Video shadow is enabled
Disabled Video shadow is disabled

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4.7. CHIPSET FEATURES SETUP
Figure 4.4: Chipset Features Setup
•Reset Case Open Status (Optional)
•Case Opened (Optional)
If the case is closed, “Case Opened”will show “No”.
If the case have been opened, “Case Opened”will show “Yes”.
If you want to reset “Case Opened”value, set “Reset Case Open
Status”
to “Yes”and restart your computer.
•Slow Down CPU Duty Cycle (Optional)
The default value is Normal.
Normal Normal Operation
12.5%~75.0% Monitor CPU Temp. will cause system slow down
CPU Duty Cycle to 12.5%~75.0%.

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•Shutdown Temp. (°C / °F) (Optional)
(This function will be effective only for the operating systems that
support ACPI Function.)
The default value is 75°C/ 167°F
Disabled Normal Operation
60°C/ 140°FMonitor CPU Temp. at 60°C/ 140°F, if Temp. >
60°C/ 140°F system will automatically power off .
65°C/ 149°FMonitor CPU Temp. at 65°C/ 149°F, if Temp. >
65°C/ 149°F system will automatically power off .
70°C/ 158°FMonitor CPU Temp. at 70°C/ 158°F, if Temp. >
70°C/ 158°F system will automatically power off .
75°C/ 167°FMonitor CPU Temp. at 75°C/ 167°F, if Temp. >
75°C/ 167°F system will automatically power off .
•Temp. Select (°C / °F) (Optional)
The default value is 70°C /158°F
60°C/ 140°FMonitor CPU Temp. at 60°C/ 140°F
65°C/ 149°FMonitor CPU Temp. at 65°C/ 149°F
70°C/ 158°FMonitor CPU Temp. at 70°C/ 158°F
75°C/ 167°FMonitor CPU Temp. at 75°C/ 167°F
•Temperature Alarm (Optional)
The default value is No
No When CPU Temp. overheat, then system won’t alarm.
Yes When CPU Temp. overheat, then system will alarm.
•Current Temp. (Optional)
Detect Temp. automatically.

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•Fan Fail Alarm (Optional)
CPU/POWER/PANEL
No Fan Fail Alarm Function Disabled.
Yes Fan Fail Alarm Function Enabled.
•Current FAN Speed (RPM) (Optional)
Detect Fan speed status automatically.
•Current Voltage (v) VCORE / VGTL/ VCC3 / ±12V / ±5V / VBAT / 5VSB
(Optional)
Detect system’s voltage status automatically.
•EDO CASx# MA Wait State
The default value is 1
1Set EDO CASx# MA Wait State to 1.
2Set EDO CASx# MA Wait State to 2.
•EDO RASx# Wait State
The default value is 1
1Set EDO RASx# Wait State to 1.
2Set EDO RASx# Wait State to 2.
•SDRAM CAS latency Time
The default value is Auto
3For 67 / 83 MHz SDRAM DIMM module.
2For 100 MHz SDRAM DIMM module.
Auto CAS latency time will be set automatically if you have
SPD on SDRAM

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•DRAM Data Integrity Mode
This value will depend on the DRAM type.
Non-ECC For 64bit standard type DIMM module.
ECC For 72bit ECC type DIMM module.
•System BIOS Cacheable
The default value is Enabled.
Enabled Enable System BIOS Cacheable.
Disabled Disable System BIOS Cacheable.
•Video BIOS Cacheable
The default value is Enabled.
Enabled Enable video BIOS Cacheable.
Disabled Disable video BIOS Cacheable.
•Video RAM Cacheable
The default value is Disabled.
Disabled Disable this function.
Enabled Enable this function to get better VGA performance;
while some brands of VGA must be disabled this
function (e.g.ET4000W32P).
•16 Bit I/O Recovery Time
The default value is 1.
1-4 Set 16 Bit I/O recovery time from 1 to 4.
NA None.
•Memory Hole At 15M-16M
The default value is Disabled.
Disabled Normal Setting.

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Enabled Set Address=15~16MB remap to ISA BUS.
•Delayed Transaction
The default value is Disabled.
Disabled Normal operation.
Enabled For slow speed ISA device in system.
•Clock Spread Spectrum
The default value is Disabled.
Disabled Disabled this function
Enabled Enabled Clock Spread Spectrum
4.8. POWER MANAGEMENT SETUP
Figure 4.5: Power Management Setup
RThese two items will show up when “Resume by Alarm”is Enabled.
•Power Management
The default value is Enabled.
Enabled Enable Green function.
Disabled Disable Green function.

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•PM Control by APM
The default value is Yes.
Yes Enable software APM function.
No Disable software APM function.
•Video off Method
The default value is DPMS.
V/H SYNC + Blank BIOS will turn off V/H-SYNC when gets into
Green mode for Green monitor power saving.
Blank Screen BIOS will only black monitor when gets into
Green mode.
DPMS BIOS will use DPMS Standard to control VGA
card. (The Green type VGA card will turn of
V/H-SYNC automatically.)
•Suspend Mode
The default value is Disabled.
Disabled Disable Suspend Mode.
1 min - 1
Hour Setup the timer to enter Suspend Mode.
•HDD Power Down
The default value is Disabled.
Disable Disable HDD Power Down mode function.
1-15 mins. Enable HDD Power Down mode between 1 to 15 mins.
•VGA Active Monitor
The default value is Disabled.
Disabled Disable monitor VGA activity.
Enabled Enable monitor VGA activity.

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•Soft-off by PWR-BTTN
The default value is Instant-Off.
Instant-off Soft switch ON/OFF for POWER ON/OFF
Delay 4 Sec. Soft switch ON 4sec. for POWER OFF.
•System After AC Back
The default value is Soft-Off.
Memory This function depends on computer status
Soft-Off Set System Soft-Off Status.
Full-On Set System Full-On Status.
•Power LED in Suspend
The default value is BLINKING.
BLINKING Set Power LED in Suspend at BLINKING mode.
ON Set Power LED in Suspend at ON mode.
OFF/DUAL Set Power LED in Suspend at OFF/DUAL mode.
•CPUFAN Off In Suspend
The default value is Enabled.
Disabled Disable this function.
Enabled Stop CPU FAN when entering Suspend mode.
•PME Event Wakeup
The default value is Enabled.
Disabled Disable PME Event Wakeup.
Enabled Enable PME Event Wakeup.